Methods, devices, and systems for the fabrication of materials and tissues utilizing electromagnetic radiation

Patent metadata

Field	Value
Publication number	US-11779472-B2
Application number	US-202117346830-A
Country	US
Kind code	B2
Filing date	Jun 14, 2021
Priority date	Mar 25, 2014
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

The present invention provides a three-dimensional bioprinter for fabricating cellular constructs such as tissues and organs using electromagnetic radiation (EMR) at or above 405 nm. The bioprinter includes a material deposition device comprising a cartridge for receiving and holding a composition which contains biomaterial that cures after exposure to EMR. The bioprinter also includes an EMR module that emits EMR at a wavelength of about 405 nm or higher. Also provided is a bioprinter cartridge which contains cells and a material curable at a wavelength of about 405 nm or greater. The cells are present in a chamber and are extruded through an orifice to form the cellular construct.

First claim

The invention claimed is:

1. A bioprinter for printing a three-dimensional structure comprising:
a plurality of cartridge-extruder assemblies, each of the cartridge-extruder assemblies comprising a cartridge for receiving and holding a composition configured to cure after exposure to electromagnetic radiation (EMR) at or above a wavelength of 405 nanometers, and an extruder configured to engage with the cartridge and extrude the composition;
one or more receiving plates, positioned beneath the plurality of cartridge-extruder assemblies, wherein each of the one or more receiving plates is configured to receive one or more of the extruded compositions from the plurality of cartridge-extruder assemblies; and
one or more electromagnetic radiation modules configured to apply electromagnetic radiation having a wavelength equal to or greater than 405 nanometers to cure the extruded composition.

2. The bioprinter of claim 1 , wherein a subset of the electromagnetic radiation modules is configured to direct electromagnetic radiation to a specific location on the one or more receiving plates to apply electromagnetic radiation to the extruded composition upon, during, or after deposition.

3. The bioprinter of claim 1 , wherein a subset of the electromagnetic radiation modules is configured to direct electromagnetic radiation towards the composition held in the cartridge-extruder assembly before the composition is extruded onto the receiving plate.

4. The bioprinter of claim 1 , wherein each of the one or more electromagnetic radiation modules is configured to emit electromagnetic radiation between about 1 to 5 seconds.

5. The bioprinter of claim 1 , wherein each of the one or more electromagnetic radiation modules comprises a total radiance between about 1 to 10 mW/cm 2 .

6. The bioprinter of claim 1 , wherein each of the plurality of cartridge-extruder assemblies comprises a temperature control unit.

7. The bioprinter of claim 1 , wherein each cartridge of each of the plurality of cartridge-extruder assemblies comprises a first opening configured to receive a dispensing means configured to hold the composition and a second opening, positioned opposite of the first opening configured to extrude the composition.

8. The bioprinter of claim 7 , wherein the dispensing means comprises one or more of a capillary tube, a micropipette, a syringe, or a needle.

9. The bioprinter of claim 1 , wherein the composition comprises at least one of an extrusion agent, a photo-initiator, a viscosity agent, or a biocompatible agent.

10. The bioprinter of claim 9 , wherein said extrusion agent is at least one of polyoxyalkylene, diacrylate, methacrylate, norbornene, gelatin, methacrylate, methacrylated hyaluorinc acid, hydroxyethyl-methacrylate-derivatized-dextran, p(HPMAm-lactate)-PEG, gold nanorods, carbon nanotubes, collagen, polyethylene oxide, poly-caprolactone, and poly(L)-lactic acid.

11. The bioprinter of claim 9 , wherein said photo-initiator is lithium phenyl-2,4,6-trimethylbenzoylphosphinate or one or more of the following: 2-Hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone, 4-(2-hydroxyethoxy)benzoyl, Isopropanol-2-yl, phenyl-2,4,6-trimethylbenzoylphosphinate, 2,4,6-trimethylbenzoyl, and phenylphosphonyl.

12. The bioprinter of claim 9 , wherein said viscosity agent is at least one of poly(ethylene oxide), gelatin, Pluronic F-127, and hyaluronic acid.

13. A method for printing a three-dimensional structure comprising:
providing, a plurality of cartridge-extruder assemblies of a bioprinter, each of the plurality of cartridge-extruder assemblies containing a composition configured to cure after exposure to electromagnetic radiation having a wavelength equal to or greater than 405 nanometers;
extruding, by a subset of the plurality of cartridge-extruder assemblies of the bioprinter, the respective composition;
receiving, on a receiving plate, the extruded compositions; and
curing the received extruded composition by applying electromagnetic radiation having a wavelength equal to or greater than 405 nanometers to the extruded compositions.

14. The method of claim 13 , wherein the composition comprises at least one of an extrusion agent, a photo-initiator, a viscosity agent, or a biocompatible agent.

15. The method of claim 14 , wherein said extrusion agent is at least one of polyoxyalkylene, diacrylate, methacrylate, norbornene, gelatin, methacrylate, methacrylated hyaluorinc acid, hydroxyethyl-methacrylate-derivatized-dextran, p(HPMAm-lactate)-PEG, gold nanorods, carbon nanotubes, collagen, polyethylene oxide, poly-caprolactone, and poly(L)-lactic acid.

16. The method of claim 14 , wherein said photo-initiator is lithium phenyl-2,4,6-trimethylbenzoylphosphinate or one or more of the following: 2-Hydroxy-4′-(2-hydroxyethoxy)-2-methylpropiophenone, 4-(2-hydroxyethoxy)benzoyl, Isopropanol-2-yl, phenyl-2,4,6-trimethylbenzoylphosphinate, 2,4,6-trimethylbenzoyl, and phenylphosphonyl.

17. The method of claim 14 , wherein said viscosity agent is at least one of poly(ethylene oxide), gelatin, Pluronic F-127, and hyaluronic acid.

18. The method of claim 13 , wherein extruding the respective composition comprises generating a pressure using at least one of a piston, compressed gas, hydraulics, air compressor, piezo-electronics, and inkjet dispensing extrusions.

19. The method of claim 13 , comprising calibrating the position of the receiving plate with respect to the cartridge-extruder assembly prior to extruding the respective composition.

20. The method of claim 13 , comprising applying electromagnetic radiation having a wavelength equal to or greater than 405 nanometers to the composition held in the cartridge-extruder assembly.

Assignees

• 3D Systems Inc

Inventors

• Solorzano Ricardo D
• Hashmi Sohaib K
• Cabrera Daniel

Classifications

• A61F2/5044 Primary

  Designing or manufacturing processes · CPC title

• A61L27/26

  Mixtures of macromolecular compounds · CPC title

• A61L27/3834

  Cells able to produce different cell types, e.g. hematopoietic stem cells, mesenchymal stem cells, marrow stromal cells, embryonic stem cells · CPC title

• B29C64/112 Primary

  using individual droplets, e.g. from jetting heads · CPC title

• B29C64/20

  Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title